Like all fields of socio-economic measurement, there is scope for debate on how best to assess development progress. There is often much to be learnt from such debate.
But the debates are not always politically neutral. Some observers chose only to look critically at data and methods when the results diverge from their political priors. And some try to undermine evidence that does not fit their priors by questioning the motives of those producing that evidence. A generous interpretation might construe this as some “postmodern” approach to data, but on closer inspection it often looks more like a debating ploy to make up for weak substantive arguments.